Anyone know of a t-stat that can be set at say 72 to turn my furnace blower on and also be able to set it at 70 for the gas to kick in. I know i can use 2 t-stats to do this, but I really would like to only use 1. Right now I have a 2 stage stat that will turn the fan on at the set temp and if the inside temp doesn't get to what it is set at in a certain amount of time, the gas kicks in. But the time frame is not programmable. I would really like to be able to set it at 2 different temps, one for the fan and the second for the gas to kick in if the inside temp continues to fall.